html,
body {
  margin: 0;
  border: 0;
  padding: 0;
  width: 100%;
  height: 100%;
}

#wrapper {
  display: flex;
  flex-direction: column;
  box-sizing: border-box;
  margin: 0;
  border: 0;
  padding: 8px;
  width: 100%;
  height: 100%;
  min-width: unset;
}

#recent {
  margin-bottom: .5em;
}

#tree {
  flex: 1;
  box-sizing: border-box;
  border: 1px ridge gray;
  padding: .25em;
  width: 100%;
  min-height: 80px;
  font-size: 16px;
  overflow: auto;
}

#toolbar {
  margin-top: .75em;
}

#toolbar div:last-of-type {
  margin-top: 1em;
  padding: .25em;
}
